Offset for saw-mill carriages



(No Model.)

0. E. GLEVELAND 8?; J. HANSON.

OFFSET FOR SAW MILL GARRIAGES.

No. 369,982. Patented Sept. 13, 1887.

UNITED STATES PATENT OFFICE.

- CHARLES E. CLEVELAND AND JOSEPH HANSON, OF FORT WAYNE, INDIANA.

OFFSET FOR SAW-MILL CARRIAGES.

SPECIFICATION forming part of Letters Patent No. 369.982, datedSeptember 13, 1887.

Application filed November 15, 1886. Serial No. 218,847. (No model.)

To a, whom it may concern.-

Be it known that we, CHARLES E. CLEVE- LAND and JosEPH HANSON, citizensof the United States, residing at Fort Wayne, in the county of Allen andState of Indiana, have invented a .new and useful Offset for Saw- MillCarriages, of which the following is a specification.

Our invention relates to lateral-shifting sawmill carriages; and theobjects of our invention are, first, to provide a lateral-shiftingsaw-mill carriage in which the carriage will positively move sidewisebefore it will move forward or backward upon its track; second, toprovide a more reliable and easier working carriage; third, to secure alateral-shifting saw-mill carriage by means of connecting the feed orpro pelling force of carriage direct to offsetting mechanism. \Ve attainthese objects by the mechanism illustrated in the accompanying drawings,in which- Figure 1 is a plan of carriage with our offsetting mechanismattached, and Fig. 2 a section on the dotted line h h in Fig. 1. Figs.1, 2, 3, and 4 constitute the frame-work of carriage, which rests uponthe axles t, on either end of which are the wheels 5-6 7 8 and 9, 0, 10,and 12, running upon a suitable track.

The ofl'set proper consists of the castings e 6, Fig. 2, secured to theaxles 13 by the lower half of boxes J, the castings c eforming the upperhalf of box, and prevented from moving sidewise on the axles i by meansof the collars a a a a, Fig. l.

' m m are castings bolted to the side timber, Z, Fig. 1, of carriage, inwhich work the connecting'rods r r, secured by the pins ff, and alsosecured to the arms ttby pins K K. The

arms t t are in turn secured to the large pins V V, which projectthrough the castings e, on the other end of which are secured the arms 8s, forming bell-cranks, which are connected together by the rod (1.

Q and or represent the feed or propelling force of carriage, in thiscase a Wire rope, although any kind of feed may be used, ascircumstances may suggest. 0 and c, Fig. 1, are pins placed in thecasting e to form stops for the arm 25 to strike against, thusregulating the distance the carriage offsets, or the distance movedlaterally on the axles i.

If the power be applied to n to move the carriage forward, the rope npulls the arms 8 8 forward, and moves the carriage laterally until thearms tt strike the stop 0,- then the carriage moves forward. Likewise,when the power is applied to Q, the rope Q pulls the arms 8 8 back, thearms t t strike the stop 0, when the carriage moves back.

We are aware that prior to our invention lateral-shifting saw-millcarriages have been made. YVe therefore do not claim that broadly; but

What we do claim as our invention is- In a lateral-shifting saw-millcarriage, the combination of the arms 't t and s s, forming bell-cranks,connected to side of carriage by the rods 1" r, and the bellcranksconnected together by the rod (2 and operated by the feed or propellingforce of carriage-cable n Q, all as substantially set forth.

CHAS. E. CLEVELAND. JOSEPH HANSON. \Vitnesses:

I. G. AYERs, T. B. EMPIE.

